3. The springs (k25 lb/ft) are un- stretched when s = 0. The 50-lb weight is...

 

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3. The springs (k25 lb/ft) are un- stretched when s = 0. The 50-lb weight is released from rest in the position s = 0. (a) (b) When the weight has fallen 1 ft, how much work has been done on it by each spring? What is the magnitude of the velocity of the weight when it has fallen I ft? www 3. The springs (k25 lb/ft) are un- stretched when s = 0. The 50-lb weight is released from rest in the position s = 0. (a) (b) When the weight has fallen 1 ft, how much work has been done on it by each spring? What is the magnitude of the velocity of the weight when it has fallen I ft? www